DIFFUSER PLATE, DISPLAY DEVICE, PROJECTING DEVICE, AND LIGHTING DEVICE

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United States of America Patent

APP PUB NO 20240077658A1
SERIAL NO

17766950

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Abstract

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To reduce unevenness in a luminance distribution in two directions of microlenses disposed in a form of a rectangular grid to improve uniformity of light distribution. Provided is a diffuser plate of a microlens array type including a base material, and a microlens array composed of a plurality of microlenses disposed on an X-Y plane on at least one surface of the base material using a rectangular grid as a reference, in which grid intervals Wx in an X direction of the microlenses disposed in the X direction of the rectangular grid are different from each other, grid intervals Wy in a Y direction of the microlenses disposed in the Y direction of the rectangular grid are different from each other, and surface shapes of the plurality of microlenses are different from each other.

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Patent Owner(s)

Patent OwnerAddress
DEXERIALS CORPORATIONGATE CITY OSAKI EAST TOWER 8F 1-11-2 OSAKI SHINAGAWA-KU TOKYO 141-0032

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
ARIMA, Mitsuo Tochigi, JP 29 86
ISHIWATA, Masayuki Tochigi, JP 10 128
KANASUGI, Shunsuke Tochigi, JP 6 1

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